Curtain window frame



Aug- 6, 1929. A. s. CAMPBELL 1,723,466

CURTAIN WINDOW FRAME Filed Jan. 16, 1925 1217/671307.- dlgo/onso". Ua 771/323632.

fyemwmw ell) Patented Aug. 6, 1929.

UNITED STATES `PATENT OFFICE.

ALPHONSO S. CAMPBELL, OF WINCHESTER, MASSACHUSETTS, ASSIGNOR TO A. S. CAMP- BELL COMPANY, OF EAST BOSTON, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

CURTAIN WINDOW FRAME.

Application filed January 16, 1525. Serial No. 2,815.

This invention aims to provide an improved curtain window frame.

In the drawings, which illustrate a preferred embodiment of my invcntionz lligure 1 is an elevation view of a curtain window installation;

Fig. 2 is a section on the line 2-2 of Fig. 1, showing one of' the trame-securing attaching screws in elevation;

Fig. 3 is a section on the line 5%-3 of Fig. 1, showing one of the cover trames engaged beneath the securing frame element;

Fig. 4 is an inside elevation et a portion of the glass-supporting frame element;

Fig. 5 is an outside elevation ot' a pertion of the glass-supporting frame element; and

Fig. 6 is a section on the line 6--6 of Fig. 4.

Referring to the drawings, I have shown a curtain window installation which is particularly, though not exclusively, useful for back or side curtains for automobiles.

I have found that the metal frame parts oi large curtain window installations have a tendency to bow or spread laterally when stra-in is exerted upon them and this is es` pecially true when a relatively long window frame, such as shown in Fig. l, is secured to a tight curtain. The purpose of my invention, in View of the foregoing statement, is, therefore, to provide a curtain window frame which is so constructed that it is greatly reinforced and will withstand reasonable strains exerted upon it.

The installation, as illustrated, includes the curtain fabric 1, the glass 2, the securing trame member 3, cover frame 1, attaching screws 5 and tongues 5, all of which are substantially the same as shown and described in my co-pending application Serial No. 2811, liled herewith.

In addition to the above-mentioned parts of the installation, I have provided a relatively rigid glass-holding frame member 6 which is formed from two pressed metal parts secured together to form a hollow irame member, as illustrated in Fig. 6. This frame member includes an inner frame part 7 and an outer frame part 8, both of which are constructed with a view to strength. The inner part 7 is angular in cross-section and provides a labricgripping surface 9 and a supporting flange 1() of sub- The flange 13 overlies and is supported by its supporting flange 10, and both flanges are back-supported by a relatively narrow portion l/l o'f the frame 8 adjacent its inner edge. rl`he glassdiolding frame part may also be strengthened by iorming one or more ribs, corrugations or reinforcing ridges 15 in the curved portion of the outer part 8 as shown in Figs. 5 and G. Thus the frame parts are constructed and secured together to withstandreasonable lateral strain.

A cushion strip of adhesive tape 16, or other suitable material, is wrapped about the glass at both faces and the edge thereof adjacent the edge and adheres very strongly to the glass. The tape not only provides a cushion for the glass, but also provides a means by which the glass may be used to strengthen the trame .member 6. The latter is accomplished by cementing the tape to the wall 11 and to the glass-supporting flange 13. rl'hus the relatively wide cemented surfaces, the flat wide supporting flange and the ridges torni a combined means for strengthening and stiflening the glass-hold ing l'raine part to prevent bowing or spreading ot the sides ot the frame, when under lateral strain.

While I have shown and described a preferred embodiment oi my invention, it will be understood that I have donc so for pur poses of clarification and not limitation, my invention being best defined in the following claims.

Claims.

1. In a curtain window installation a hol low pressed metal curtain window frame member formed from two pressed metal parts secured together to form a relatively wide flat glasssupporting surface at the :inner edge thereof to assist in strengthening the frame element, one ot said trame parts generally curved in cross-section and spaced away from the other frame part except at the edges and strengthening means formed in said generally curved frame part, said strengthening means cooperating with said flat glass-supporting surface to prevent lateral spreading of the :trame element.

2. In a curtain Window installation a hollow pressed metal glass-holding frame member including a. cover frame part pre-' senting a relatively Wide glass-supporting flange portion extending from the inner edge of said frame part assembled with said cover frame part and an inner frame part presenting a relatively flat supporting flange underlying said glass-supporting flange, a generally curved outer face portion presented by said cover frame part spaced away from said inner frame part and having at least one stiffening rib formed in the face thereof and a glass adhesively secured to said inner frame and said glass-supporting flange to cooperate with said relatively Wide flat flanges and said stiffening ribs to prevent lateral distortion of said frame member even when not secured as a part of the installation.

3. In a curtain Window installation a hollow pressed metal two-piece glass-supporting frame member including an inner part and an outer part positively secured together, said frame member presenting at one face thereof' a fabric-gripping surface and a glass-supporting surface offset relative to each other and connected by a glass-positioning wall, one of said surfaces being provided by one of said frame member parts and substantially all of the other surface being provided by the other frame part, each of said surfaces being of substantially the same Width and together constituting substantially the entire Width of the frame element. Y

In testimony whereof, I have signed my name to 'this specification.

ALPHONSO S. CAMPBELL. 

